mat-sidenav-container {
  top: 56px;
  height: calc(100vh - 56px);
}

mat-sidenav {
  min-width: 20vw;
  box-shadow: 6px 0 6px rgba(0,0,0,.1);
}

mat-toolbar {
  position: fixed;
  height: 56px;
  z-index: 10;
  box-shadow: 0 2px 5px 0 rgba(0,0,0,.3);
}

.dirIcon {
  margin-right: 1em;
}

.spacer {
  flex: 1 1 auto;
}

.gitee {
  height: 20px;
  margin-left: 1em;
}

.gitee-logo {
  display: block;
}

.light-btn {
  position: fixed;
  right: 3vw;
  top: 5em;
  z-index: 5;
}
